Marija Hribernik

University of Ljubljana, Lubliano, Ljubljana, Slovenia

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Publications (25)36.73 Total impact

  • Ana Trajkovski · Senad Omerovic · Marija Hribernik · Ivan Prebil
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    ABSTRACT: Cervical spine ligaments have an important role in providing spinal cord stability and restricting excessive movements. Therefore, it is of great importance to study mechanical properties and model the response of these ligaments. The aim of this study is to characterize ageing effects on failure properties and model damage of three cervical spine ligaments: the anterior and the posterior longitudinal ligament and the ligamentum flavum. A total of 46 samples of human cadaveric ligaments removed within 24-48 hours after death have been tested. Uniaxial tension tests along fibre direction were performed in physiological conditions. The results showed that ageing decreased failure properties of all three ligaments (failure load, failure elongation). Furthermore, the reported non-linear response of cervical ligaments has been modelled with a combination of the previously reported hyperelastic and damage model. The model predicted a non-linear response and damage region. Material parameters are in agreement with experimental data, and the quality of agreement is represented with very low RMS error values and the values of coefficient of determination close to 1. Keywords: Cervical spine, ligament, tension test, hyperelastic, damage, biomechanics.
    No preview · Article · Mar 2014 · Journal of Biomechanical Engineering
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    G Filardo · M Drobnic · F Perdisa · E Kon · M Hribernik · M Marcacci
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    ABSTRACT: To evaluate stability and integrity of bi-layer and three-layer collagen-hydroxyapatite (C-HA) osteochondral scaffolds in a human cadaveric knee exposed to continuous passive motion (CPM) with and without loading and the role of added fibrin glue to improve the press-fit fixation of C-HA scaffolds. Osteochondral lesions (2.0 x 1.5 cm) were chiseled out on both condyles and trochlea in eight human cadaveric knees. A total of 24 bi-layer (5 mm, 4 in each condyle) or three-layer C-HA scaffolds (8 mm, 8 in the trochlea, 4 in each condyle) were first press-fit implanted and underwent testing with CPM, 90 cycles, 0° to 90°. The second set of 24 scaffolds was implanted in cleaned lesions with the addition of fibrin glue. Two knees with fibrin glue fixation were additionally exposed to 15 kg loading, with 30 cycles of CPM, 0° to 30°. Then, the knees were re-opened and the scaffolds were evaluated using semi-quantitative Drobnic and modified Bekkers scores. All but two scaffolds remained in the lesions site throughout CPM. Two implants failed: both were bi-layer osteochondral scaffolds, press-fit implanted at the LFC. A statistically significant difference was obtained between press-fit and fibrin glue implants with both Drobnic (2.9±0.7 vs 4.3±0.1, p<0.0005) and Bekkers (3.3±1.0 vs 5.0±0.1, p<0.0005) scores. Additional knee loading did not affect fibrin glue scaffold fixation or integrity. This cadaveric study showed fibrin glue notably improved bi-layer or three-layer C-HA scaffold press-fit fixation regardless of lesion location. It is therefore recommended that fibrin glue be used during surgery to improve early post-operative C-HA scaffold stability and integrity.
    Full-text · Article · Jan 2014 · Osteoarthritis and Cartilage
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    G. Filardo · M. Drobnic · F. Perdisa · E. Kon · M. Hribernik · M. Marcacci
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    ABSTRACT: Objective To evaluate stability and integrity of bi-layer and three-layer collagen-hydroxyapatite (C-HA) osteochondral scaffolds in a human cadaveric knee exposed to continuous passive motion (CPM) with and without loading and the role of added fibrin glue to improve the press-fit fixation of C-HA scaffolds. Design Osteochondral lesions (2.0 x 1.5 cm) were chiseled out on both condyles and trochlea in eight human cadaveric knees. A total of 24 bi-layer (5 mm, 4 in each condyle) or three-layer C-HA scaffolds (8 mm, 8 in the trochlea, 4 in each condyle) were first press-fit implanted and underwent testing with CPM, 90 cycles, 0° to 90°. The second set of 24 scaffolds was implanted in cleaned lesions with the addition of fibrin glue. Two knees with fibrin glue fixation were additionally exposed to 15 kg loading, with 30 cycles of CPM, 0° to 30°. Then, the knees were re-opened and the scaffolds were evaluated using semi-quantitative Drobnic and modified Bekkers scores. Results All but two scaffolds remained in the lesions site throughout CPM. Two implants failed: both were bi-layer osteochondral scaffolds, press-fit implanted at the LFC. A statistically significant difference was obtained between press-fit and fibrin glue implants with both Drobnic (2.9±0.7 vs 4.3±0.1, p<0.0005) and Bekkers (3.3±1.0 vs 5.0±0.1, p<0.0005) scores. Additional knee loading did not affect fibrin glue scaffold fixation or integrity. Conclusion This cadaveric study showed fibrin glue notably improved bi-layer or three-layer C-HA scaffold press-fit fixation regardless of lesion location. It is therefore recommended that fibrin glue be used during surgery to improve early post-operative C-HA scaffold stability and integrity.
    Full-text · Article · Jan 2014 · Osteoarthritis and Cartilage
  • Marija Hribernik · Blaž Trotovšek
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    ABSTRACT: The aim of this study is to present the anatomical data about intrahepatic venous anastomoses found in normal human livers. The focus is on the middle hepatic vein (MHV) anastomoses, because their existence or non-existence could be of crucial importance in tumour resections as well as in split or living donor liver transplantations. The frequency of livers with intrahepatic venous anastomoses was determined on 164 corrosion casts and the diameter of each anastomosis was measured. Additionally, the type of connection and the position within the liver (liver segment) was determined for each MHV anastomosis. Intrahepatic venous anastomoses were found in 46 % (75/164), whereas MHV anastomoses were found in 28 % (44/164) of liver casts. Most commonly (39/44), MHV had anastomotic connections with the right hepatic vein (RHV), and also with the inferior RHV, the left hepatic vein and the short subhepatic vein. In more than three quarters of liver casts, MHV-RHV anastomoses were found in liver segment 8; in 45 % of cases, there was more than one anastomosis in this liver segment. The diameter of MHV-RHV anastomoses found in segment 8 was ≥1 mm in 90.6 % of cases. As MHV anastomoses were present in more than a quarter of all examined liver casts, we believe that detailed anatomical data presented in this article, together with up to date radiologic technics which enable even 3D reconstruction of venous anastomoses in the liver, could contribute to the clinician's decisions when planning surgical procedures.
    No preview · Article · Sep 2013 · Anatomia Clinica
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    Raja Gosnak Dahmane · Marija Hribernik
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    ABSTRACT: Functional anatomy of the liver is based on three-dimensional arrangement of four liver systems – portal, arterial, biliary and the system of hepatic veins. On the basis of the intrahepatic course and branching pattern of the systems, the liver is divided into the left and right hemiliver, four sections or eight segments. Each liver unit has its own portal pedicle, composed of portal, arterial and biliary branch and is therefore functionally independent. The fourth liver system is the system of hepatic veins which run towards the inferior vena cava in other direction than the portal pedicle. The main hepatic veins follow the intersectional planes and provide venous drainage for the two adjacent sections. Knowledge of the liver functional anatomy, including liver division into segments and sections, is the basis for accurate localization of pathological process in the liver and safe surgical treatment and radiological intervention.
    Full-text · Article · Jun 2013
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    ABSTRACT: The aim of this study was to show the connection between structure (anatomical and histochemical) and function (muscle contraction properties) of vastus medialis obliquus (VMO) and vastus medialis longus (VML). The non-invasive tensiomyography (TMG) method was used to determine the contractile properties (contraction time; Tc ) of VML and VMO muscle, as a reflection of the ratio between the slow and fast fibers in two groups of nine young men. VML and VMO significantly (P < 0.01) differ in the proportion of type 1 (59.6: 44%) and type 2b (6.3: 15%) fibers. The VML muscle is almost entirely composed of type 1 and type 2a fibers. In many samples of this muscle no type 2b fibers were found. The proportion of slow-twitch type 1 fibers is nearly twice as high as the proportion of fast-twitch type 2a fibers. These observations indicate that VML is a slower and more fatigue-resistant muscle than VMO muscle. These characteristics correspond to the different functions of the VML, which is an extensor of the knee, and to the VMO, which maintains the stable position of the patella in the femoral groove. Our results obtained by TMG provided additional evidence that muscle fibers within the segments of VM muscle were not homogenous with regard to their contractile properties, thereby confirming the histochemical results. Tc can be attributed to the higher percentage of slow-twitch fibers - type 1. The statistically shorter Tc (P ≤ 0.001) of VMO (22.8 ± 4.0 ms) compared with VML (26.7 ± 4.0 ms) in our study is consistent with previously found differences in histochemical, morphological and electrophysiological data. In conclusion, the results of this study provide evidence that the VML and VMO muscles are not only anatomically and histochemically different muscles, but also functionally different biological structures.
    Full-text · Article · Apr 2013 · Journal of Anatomy
  • Raja Gosnak Dahmane · Marija Hribernik
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    ABSTRACT: Functional anatomy of the liver is based on three-dimensional arrangement of four liver systems – portal, arterial, biliary and the system of hepatic veins. On the basis of the intrahepatic course and branching pattern of the systems, the liver is divided into the left and right hemiliver, four sections or eight segments. Each liver unit has its own portal pedicle, composed of portal, arterial and biliary branch and is therefore functionally independent. The fourth liver system is the system of hepatic veins which run towards the inferior vena cava in other direction than the portal pedicle. The main hepatic veins follow the intersectional planes and provide venous drainage for the two adjacent sections. Knowledge of the liver functional anatomy, including liver division into segments and sections, is the basis for accurate localization of pathological process in the liver and safe surgical treatment and radiological intervention.
    No preview · Article · Jan 2013
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    ABSTRACT: The objective of this study was to determine precise localization and external diameter of the lower abdominal wall perforators as well as to investigate some vascularity differences between the same parts of perfusion zones II and III according to Hartrampf perfusion zones. The study was performed on 10 fresh cadavers (20 hemiabdomens) using the gelatin injection technique. All perforators were identified, and their localization and diameter were noted. Measurements were made at the level of the fascia. We noted localization and diameter of arteries on cross-sectional planes of either part of the flap. The median sum of the external diameter of all arteries in zone I was 17.01 mm. The median sum of the external diameter of all arteries in the medial 1/3 part of zone III was 4.17 mm, and in the medial 1/3 part of zone II, it was 0.96 mm. The median sum of the external diameter of all arteries in the intermediary 1/3 part of zone III was 2.16 mm, whereas in the intermediary 1/3 part of zone II, it was 0.81 mm. Significant differences were recorded between proximal and middle horizontal regions of zones II and III and between medial vertical part of zone III and medial vertical part of zone II. Anastomoses between zones I and II are considerably smaller compared with anastomoses between zones I and III. The best vascularized parts of the lower abdominal wall were perfusion zone I, then the inner 2/3 of zone III and medial 1/3 of zone II.
    Full-text · Article · Jan 2012 · Microsurgery
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    Raja Dahmane · Abdelwaheb Morjane · Dean Ravnik · Marija Hribernik
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    ABSTRACT: Background: The control of the left hepatic vein (LHV) and the common trunk of the middle hepatic vein (MHV) and LHV (CT) is considered difficult during liver resection and could be improved by detailed knowledge on the ligamentum venosum Arantii (LV). Aim: The aim of this study was to describe the LV and its connections to the LHV and the CT and to present surgical relevance of the obtained data. Material and Methods: During autopsy of 50 cadavers of both sexes, the LV was exposed, measured and then dissected, simulating a surgical maneuver to facilitate the approach to the LHV and CT. The extrahepatic parts of the LHV, MHV and CT were measured. Results: The LV was 52–70 mm long and 5–8 mm thick. It had a fibrotic structure and was not patent in 96% of the cases. The extrahepatic part of the LHV measured 3–19 mm, that of the MHV 3–18 mm and that of the CT 4–15 mm. Conclusion: LV dissection facilitated extraparenchymatous clamping of the hepatic veins: the extrahepatic parts of the LHV and CT measured >3 mm in 86 and 84% of the cases, respectively.
    Full-text · Article · Feb 2009 · Cells Tissues Organs
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    Abdelwaheb Morjane · Raja Dahmane · Dean Ravnik · Marija Hribernik
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    ABSTRACT: Background: There are nearly no data on the hepatocaval ligament (HCL) in the anatomical literature, though it is of high importance during surgery of the right hemiliver. Aim: The aim of this study was to determine the frequency of the HCL, its description and its relations to the inferior vena cava (IVC) and the right hepatic vein (RHV) as well as the evaluation of the surgical relevance of the data obtained. Materials and Methods: The dissection of the livers of 43 cadavers of both sexes was performed and the presence of the HCL was established. The ligament was measured and dissected to expose the IVC and the extrahepatic part of the RHV from its inflow to the liver parenchyma. Results: The ligament was present in 77% of the cases. It was 12–35 mm long and 3–18 mm wide. The extrahepatic part of the RHV was 2–12 mm long. Conclusion: Dissection of the HCL revealed the terminal extrahepatic part of the RHV in all cases. Anatomically, resection of the right hemiliver with elective vascular control would be possible in 85% of the cases in which the length of the extrahepatic part of the RHV was ≥3 mm.
    Full-text · Article · Mar 2008 · Cells Tissues Organs
  • S. Krasna · I. Prebil · M. Hribernik
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    ABSTRACT: A traffic accident is a complex phenomenon with vehicles and human beings involved. During a collision, the vehicle occupant is exposed to substantial loads, which can cause the occupant injuries that depend on the level of passive safety, as well as on the occupant's individual characteristics. Correct estimation of injury severity demands a validated human body model and known impact conditions. A human body modelling procedure for the purpose of accident analysis is introduced. The occupant body has been modelled as a multibody system with rigid body segments connected. Geometrical and inertial properties of individual body segments were estimated using computed tomography. Frontal impact conditions were simulated on a sled test facility, while the human body dynamic response was measured. Comparison of experimental data and computer simulation revealed an influence of joint resistive properties on the occupant motion in collisions. The difference between measured and simulated response was minimised using optimisation method. Individualised human body modelling procedure enabled better prediction of the occupant motion during vehicle collision and thus more precise estimation of possible injuries in real-life traffic accidents.
    No preview · Article · Sep 2007 · Vehicle System Dynamics
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    M Krkovic · D Bombac · M Balazic · F Kosel · M Hribernik · V Senekovic · M Brojan
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    ABSTRACT: Biomechanical properties of basket plate fixation for fracture dislocation in the distal part of the patella were studied on 22 fresh-frozen lower extremities (human cadaveric knees). The patella and the patellar ligament with the proximal tibia were removed. A comminuted fracture of the distal part of the patella was created with a chisel. The fractured patella, patellar ligament and tibial tuberosity of each specimen were fixed with a basket plate and mounted into the jaws of the testing machine. The measured load to failure was 421.66+/-45.90 N, which is approximately 70% higher than the results in other studies. The results of the measurements verified the results of finite element analysis. The modified precurved patellar basket plate developed in this study showed improved performance compared to the pre-existing fixation methods.
    Full-text · Article · Jul 2007 · The Knee
  • M Ursic · D Ravnik · M Hribernik · J Pecar · J Butinar · G Fazarinc
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    ABSTRACT: The anatomical variations of the portal vein and the hepatic artery ramifications were analysed on liver corrosion casts in 20 dogs as a possible aid in the surgical management of the organ. The portal vein ramified similarly in all dogs. It divided into the smaller right portal branch from which vessels for the caudate process and both right lobes arose and the substantial left portal branch, which supplied the remaining liver portions and in 12 cases also the dorsal part of the right lateral lobe. Right lateral, right medial and left branches are the major arteries originating from the hepatic artery; however, their origin and course varied among individual animals. In 10 livers, the right lateral and the left branches originated from the hepatic artery, while the right medial branch arose from the left branch and usually supplied the right medial lobe solely. In nine livers, the right medial branch arose directly from the hepatic artery and supplied quadrate lobe and gallbladder as well, while in one liver the common artery, which subsequently divided into lobar branches, branched away from the hepatic artery. An additional branch for the caudate process, originating directly from the hepatic artery, was observed in 10 livers. Certain liver portions received the arterial blood from two major branches, which was particularly characteristic for the right medial lobe (six livers) and caudate process (10 livers). The course of the major arterial branches was also variable, although they proceeded in close anatomical relationship with the portal vein branches. The left arterial branch accompanied the left portal branch on its dorsal aspect (15 cases) or crossed it from the caudal aspect (five cases). The right lateral branch crossed the initial parts of the left and right portal branches either from cranial (12 cases) or caudal aspects (eight cases), while the right medial branch always crossed the left portal branch from its caudal aspect.
    No preview · Article · May 2007 · Anantomia Histologia Embryologia
  • M Drobnic · D Radosavljevic · D Ravnik · V Pavlovcic · M Hribernik
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    ABSTRACT: Four fixation techniques for a fibrinogen and thrombin coated collagen fleece, used as a scaffold in the cartilage repair, were compared simulating the initial postoperative period in the cadaveric knee joints. Full-thickness chondral lesions were made on the medial femoral condyles of seven human cadaveric inferior extremities. Four scaffolds without seeded chondrocytes were implanted into each lesion using four fixation techniques consecutively: self-adhesion without additional material (SA), fibrin sealant (FS), bone sutures (BS), and periosteal cover (PC). After each implantation 150 cycles of continuous passive motion (CPM) were performed. Two cases were additionally exposed to 50 cycles of 10 and 20 kg loading each after the completion of CPM. The scaffolds were evaluated after every 30 cycles, and the fixation strength was tested after the motion was completed. All the SA scaffolds were detached before 60 cycles. The other scaffolds remained stable throughout the testing with only minor disruptions. The endpoint fixation strength was higher for BS and PC than for the FS scaffolds. The FS scaffolds were detached as a result of additional load cycles, while the BS and PC scaffolds showed substantial deformations. SA of tested scaffold did not provide sufficient fixation. The FS fixation was easy to perform and assured satisfactory scaffold stability. BS and PC provided excellent scaffold stability, but the techniques were difficult and caused additional injuries. Regardless of the fixation technique used, the tested collagen scaffold may not be exposed to loading in the initial postoperative period.
    No preview · Article · May 2006 · Osteoarthritis and Cartilage
  • Blaz Trotovsek · Marija Hribernik · Diana Gvardijancic · Franc Jelenc
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    ABSTRACT: A case of long diverticular colonic duplication producing acute abdominal pain in a 6-year-old girl is presented. Physical examination showed no signs of acute abdomen at the initial presentation. After a pain-free interval, there was a sudden onset of severe abdominal pain and a large tumor in the lower abdomen was observed. A plain x-ray showed an enormously dilated colonic pouch filled with gas. Excision of the T-shaped duplication and small part of the transverse colon was successful. Because of extensive fibrotic changes in the colon near the opening of duplication, a resection margin of at least 2 cm is recommended.
    No preview · Article · Feb 2006 · Journal of Pediatric Surgery
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    B. TROTOVŠEK · E.M. Gadžijev · D. RAVNIK · M. HRIBERNIK
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    ABSTRACT: Background. An anatomical study was carried out to evaluate the safety of the liver hanging maneuver for the right hemiliver in living donor and in situ splitting transplantation. During this procedure a 4–6 cm blind dissection is performed between the inferior vena cava and the liver. Short subhepatic veins entering the inferior vena cava from segments 1 and 9 could be torn with consequent hemorrhage. Materials and methods. One hundred corrosive casts of livers were evaluated to establish the position and diameter of short subhepatic veins and the inferior right hepatic vein. Results. The average distance from the right border of the inferior vena cava to the opening of segment 1 veins was 16.7±3.4 mm and to the entrance of segment 9 veins was 5.0±0.5 mm. The width of the narrowest point on the route of blind dissection was determined, with the average value being 8.7±2.3 mm (range 2–15 mm). Discussion. The results show that the liver hanging maneuver is a safe procedure. A proposed route of dissection minimizes the risk of disrupting short subhepatic veins (7%).
    Preview · Article · Jan 2006 · HPB
  • Bostjan Mlakar · Eldar M Gadzijev · Dean Ravnik · Marija Hribernik
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    ABSTRACT: The development of diagnostic methods and new surgical techniques means it is increasingly important to have accurate knowledge of the anatomy of the hepatic arterial and biliary systems, including their variations, at extrahepatic and intrahepatic levels. The aim of this study was to determine how often the biliary and arterial systems run together and branch in the same pattern. Fifty corrosion casts of the liver were used to analyse the origin and branching patterns of arteries and the confluences of bile ducts. In addition, both systems were analysed to determine the frequency of normal arrangements and variations. The congruence of the course of both systems was analysed at the porta hepatis and in the left and right hemilivers down to the segmental level. A congruent course of the arterial and the biliary systems was identified in 38% of cases at the porta hepatis, in 32% of cases in the left hemiliver and in 30% of the right hemiliver. The congruence of both systems at the porta hepatis and in the left hemiliver was identified only if both systems were normal. In the right hemiliver, however, the congruence of both systems was identified even when both systems were variable, but only in 10% of cases. The results of the study show that, on the basis of knowledge of the course and branching of one system, the other system cannot be predicted.
    No preview · Article · Aug 2005 · European Journal of Morphology
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    ABSTRACT: The anterior approach to right hepatectomy using the liver hanging maneuver without liver mobilization claims to be anatomically evaluated. During this procedure a 4 to 6-cm blind dissection between the inferior vena cava and the liver is performed. Short subhepatic veins, entering the inferior vena cava could be torn and a hemorrhage, difficult to control, could occur. On 100 corrosive casts of livers the anterior surface of the inferior vena cava was studied to evaluate the position, diameter and draining area of short subhepatic veins and inferior right hepatic vein. The width of the narrowest point on the planned route of blind dissection was determined. The average value of the narrowest point on the planned route of blind dissection was 8.7+/-2.3mm (range 2-15mm). The ideal angle of dissection being 0 degrees was found in 93% of cases. In 7% we found the angle of 5 degrees toward the right border of inferior vena cava to be the better choice. Our results show that liver hanging maneuver is a safe procedure. With the dissection in the proposed route the risk of disrupting short subhepatic veins is low (7%).
    No preview · Article · May 2005 · Hepato-gastroenterology
  • V. Sojar · D. Stanisavljev · M. Hribernik · M. Glui · D. Kreuh · U. Velkavrh · T. Fius
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    ABSTRACT: Liver surgery is still one of the most demanding fields in surgery, and planning a liver resection always presents a challenge for a surgeon. Many authors have already described three-dimensional (3D) reconstructions of conventional computer tomography (CT) and nuclear magnetic resonance (NMR) scans, which enable precise surgery planning. But while the reconstruction can be seen, the user cannot simulate surgery. The ultimate goal has been to produce 3D reconstructions of the conventional CT or NMR slices and thus virtual environment that allows planning and simulation of the surgical procedure. The project of developing a computer program for planning and simulating liver surgery had three steps: The first step was creating a 3D virtual liver and virtual environment. The second step was developing the method to reconstruct the liver from conventional CT scans. The final step was transferring the data obtained to the previously created virtual environment for manipulation. The result of this process is a liver surgery educational tool, which produces a virtual environment using PC based software. It provides the opportunity to manipulate a 3D liver and it is tool for studying the internal liver structures for all four vessels systems. The virtual environment portrays a detailed liver segmentation. The program's most important function is allowing the opportunity to perform virtual intraoperative ultra sound on a virtual liver. The virtual liver can be dissected; the vessels can be clipped, ligated and cut. The program for D reconstruction from conventional CT scans has been developed so that the obtained data may be used for simulated surgery in the virtual environment. The virtual liver of the real patient has the capacity to be manipulated, cut, dissected; moreover, the intraoperative ultra sound can be performed as in the real surgery. First simulations have shown clear benefits in planning liver surgery. The rapid development of computer technology offers many possibilities in education and surgery planning. The group successfully developed the PC based application for surgery planning and simulation in virtual environment as well as for educational purposes.
    No preview · Conference Paper · Jun 2004
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    ABSTRACT: In a morphological study of the right hepatic veins anatomical characteristics of surgical importance were looked for. 110 cadaveric human livers were prepared by the corrosion casts method. The confluence patterns of the superior right hepatic vein, the hepatocaval confluence, the accessory right hepatic veins and the anastomoses between hepatic veins in the right hemiliver were examined. Four types of the superior right hepatic vein, based on the length of its trunk and the confluence pattern of its main tributaries were determined and their frequency was calculated. Type I was found in 20%, type II in 40%, type III in 25% and type IV in 15%. Accessory right hepatic veins with a minimal caliber of 0.4 cm, which were always present in type IV, were also found in other types, all together in 27% of the casts. The tributary-free part of the superior right hepatic vein at hepatocaval confluence was longer than 1 cm in 77%. In the right hemiliver 109 anastomoses were found in 29/110 liver casts. Knowing the characteristics of different superior right hepatic vein types and of the accessory right hepatic veins may be useful in segment-oriented liver resections and in right side living donor resections.
    No preview · Article · May 2003 · Hepato-gastroenterology